Average Error: 47.5 → 11.3
Time: 3.7m
Precision: 64
Internal Precision: 4416
\[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}\]
\[\left(\ell \cdot \frac{\frac{1}{t}}{\left|\frac{k}{t}\right|}\right) \cdot \left(\frac{\frac{2}{t}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \left(\frac{\frac{1}{\sin k}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right)\right)\]

Error

Bits error versus t

Bits error versus l

Bits error versus k

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Your Program's Arguments

Results

Enter valid numbers for all inputs

Derivation

  1. Initial program 47.5

    \[\frac{2}{\left(\left(\frac{{t}^{3}}{\ell \cdot \ell} \cdot \sin k\right) \cdot \tan k\right) \cdot \left(\left(1 + {\left(\frac{k}{t}\right)}^{2}\right) - 1\right)}\]
  2. Initial simplification30.7

    \[\leadsto \frac{\frac{\frac{2}{t} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t}\right)}{\sin k \cdot \tan k}}{(\left(\frac{k}{t}\right) \cdot \left(\frac{k}{t}\right) + 0)_*}\]
  3. Using strategy rm
  4. Applied add-sqr-sqrt30.7

    \[\leadsto \frac{\frac{\frac{2}{t} \cdot \left(\frac{\ell}{t} \cdot \frac{\ell}{t}\right)}{\sin k \cdot \tan k}}{\color{blue}{\sqrt{(\left(\frac{k}{t}\right) \cdot \left(\frac{k}{t}\right) + 0)_*} \cdot \sqrt{(\left(\frac{k}{t}\right) \cdot \left(\frac{k}{t}\right) + 0)_*}}}\]
  5. Applied times-frac30.5

    \[\leadsto \frac{\color{blue}{\frac{\frac{2}{t}}{\sin k} \cdot \frac{\frac{\ell}{t} \cdot \frac{\ell}{t}}{\tan k}}}{\sqrt{(\left(\frac{k}{t}\right) \cdot \left(\frac{k}{t}\right) + 0)_*} \cdot \sqrt{(\left(\frac{k}{t}\right) \cdot \left(\frac{k}{t}\right) + 0)_*}}\]
  6. Applied times-frac27.3

    \[\leadsto \color{blue}{\frac{\frac{\frac{2}{t}}{\sin k}}{\sqrt{(\left(\frac{k}{t}\right) \cdot \left(\frac{k}{t}\right) + 0)_*}} \cdot \frac{\frac{\frac{\ell}{t} \cdot \frac{\ell}{t}}{\tan k}}{\sqrt{(\left(\frac{k}{t}\right) \cdot \left(\frac{k}{t}\right) + 0)_*}}}\]
  7. Simplified27.3

    \[\leadsto \color{blue}{\frac{\frac{\frac{2}{t}}{\sin k}}{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\frac{\ell}{t} \cdot \frac{\ell}{t}}{\tan k}}{\sqrt{(\left(\frac{k}{t}\right) \cdot \left(\frac{k}{t}\right) + 0)_*}}\]
  8. Simplified13.4

    \[\leadsto \frac{\frac{\frac{2}{t}}{\sin k}}{\left|\frac{k}{t}\right|} \cdot \color{blue}{\left(\frac{\frac{\ell}{t}}{\tan k} \cdot \frac{\frac{\ell}{t}}{\left|\frac{k}{t}\right|}\right)}\]
  9. Using strategy rm
  10. Applied associate-*r*11.9

    \[\leadsto \color{blue}{\left(\frac{\frac{\frac{2}{t}}{\sin k}}{\left|\frac{k}{t}\right|} \cdot \frac{\frac{\ell}{t}}{\tan k}\right) \cdot \frac{\frac{\ell}{t}}{\left|\frac{k}{t}\right|}}\]
  11. Using strategy rm
  12. Applied add-sqr-sqrt11.9

    \[\leadsto \left(\frac{\frac{\frac{2}{t}}{\sin k}}{\color{blue}{\sqrt{\left|\frac{k}{t}\right|} \cdot \sqrt{\left|\frac{k}{t}\right|}}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right) \cdot \frac{\frac{\ell}{t}}{\left|\frac{k}{t}\right|}\]
  13. Applied div-inv11.9

    \[\leadsto \left(\frac{\color{blue}{\frac{2}{t} \cdot \frac{1}{\sin k}}}{\sqrt{\left|\frac{k}{t}\right|} \cdot \sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right) \cdot \frac{\frac{\ell}{t}}{\left|\frac{k}{t}\right|}\]
  14. Applied times-frac11.5

    \[\leadsto \left(\color{blue}{\left(\frac{\frac{2}{t}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{1}{\sin k}}{\sqrt{\left|\frac{k}{t}\right|}}\right)} \cdot \frac{\frac{\ell}{t}}{\tan k}\right) \cdot \frac{\frac{\ell}{t}}{\left|\frac{k}{t}\right|}\]
  15. Applied associate-*l*11.2

    \[\leadsto \color{blue}{\left(\frac{\frac{2}{t}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \left(\frac{\frac{1}{\sin k}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right)\right)} \cdot \frac{\frac{\ell}{t}}{\left|\frac{k}{t}\right|}\]
  16. Using strategy rm
  17. Applied *-un-lft-identity11.2

    \[\leadsto \left(\frac{\frac{2}{t}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \left(\frac{\frac{1}{\sin k}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right)\right) \cdot \frac{\frac{\ell}{t}}{\color{blue}{1 \cdot \left|\frac{k}{t}\right|}}\]
  18. Applied div-inv11.2

    \[\leadsto \left(\frac{\frac{2}{t}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \left(\frac{\frac{1}{\sin k}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right)\right) \cdot \frac{\color{blue}{\ell \cdot \frac{1}{t}}}{1 \cdot \left|\frac{k}{t}\right|}\]
  19. Applied times-frac11.3

    \[\leadsto \left(\frac{\frac{2}{t}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \left(\frac{\frac{1}{\sin k}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right)\right) \cdot \color{blue}{\left(\frac{\ell}{1} \cdot \frac{\frac{1}{t}}{\left|\frac{k}{t}\right|}\right)}\]
  20. Simplified11.3

    \[\leadsto \left(\frac{\frac{2}{t}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \left(\frac{\frac{1}{\sin k}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right)\right) \cdot \left(\color{blue}{\ell} \cdot \frac{\frac{1}{t}}{\left|\frac{k}{t}\right|}\right)\]
  21. Final simplification11.3

    \[\leadsto \left(\ell \cdot \frac{\frac{1}{t}}{\left|\frac{k}{t}\right|}\right) \cdot \left(\frac{\frac{2}{t}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \left(\frac{\frac{1}{\sin k}}{\sqrt{\left|\frac{k}{t}\right|}} \cdot \frac{\frac{\ell}{t}}{\tan k}\right)\right)\]

Runtime

Time bar (total: 3.7m)Debug logProfile

herbie shell --seed 2018234 +o rules:numerics
(FPCore (t l k)
  :name "Toniolo and Linder, Equation (10-)"
  (/ 2 (* (* (* (/ (pow t 3) (* l l)) (sin k)) (tan k)) (- (+ 1 (pow (/ k t) 2)) 1))))